Atool rental cost $0.65 per minute. if the total bill for the rental was $18.20 then for how many minutes was the tool used?

33% of college students say they use credit cards because of the rewards program. you randomly select 10 college students and ask each to name the reason he or she uses credit cards. find the probability that the number of college students who say they use credit cards because of the rewards program is (a) exactly two, (b) more than two, and (c) between two and five inclusive. if convenient, use technology to find the probabilities.

Write an inequality and solve each problem. for exercises 11 and 12, interpret the solution.

What is the value of x when x + 7 = 21?